<template>
  <div ref="chart" :class="className" :style="{height:height,width:width}"/>
</template>

<script>
import * as echarts from 'echarts'
require('echarts/theme/macarons') // echarts theme

export default {
  name: 'ECharts',
  props: {
    className: {
      type: String,
      default: 'chart'
    },
    width: {
      type: String,
      default: '100%'
    },
    height: {
      type: String,
      default: '350px'
    },
    autoResize: {
      type: Boolean,
      default: true
    },
    chartData: {
      type: Object,
      required: true
    }
  },
  data() {
    return {
      chart: null,
      sidebarElm: null
    }
  },
  watch: {
    chartData: {
      deep: true,
      handler(val) {
        this.setOptions(val)
      }
    }
  },
  mounted() {
    this.chart = echarts.init(this.$el, 'macarons')
    // this.setOptions(this.chartData)
    if (this.autoResize) {
     if (this.chart) {
       this.chart.resize()
     }
      window.addEventListener('resize', this.__resizeHandler)
    }

    // 监听侧边栏的变化
    this.sidebarElm = document.getElementsByClassName('sidebar-container')[0]
    this.sidebarElm && this.sidebarElm.addEventListener('transitionend', this.sidebarResizeHandler)
  },
  beforeDestroy() {
    if (!this.chart) {
      return
    }
    if (this.autoResize) {
      window.removeEventListener('resize', this.__resizeHandler)
    }

    this.sidebarElm && this.sidebarElm.removeEventListener('transitionend', this.sidebarResizeHandler)

    this.chart.dispose()
    this.chart = null
  },
  methods: {
    sidebarResizeHandler(e) {
      if (e.propertyName === 'width') {
        this.__resizeHandler()
      }
    },
    setOptions({dates, dataA, dataB, dataC} = {}) {
      console.log('ssss',dates)
      this.chart.setOption({
        xAxis: {
          data: dates,
          boundaryGap: false,
          axisTick: {
            show: false
          },

        },
        grid: {
          left: 10,
          right: 10,
          bottom: 20,
          top: 30,
          containLabel: true
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross'
          },
          padding: [5, 10]
        },
        yAxis: [
          {
            type: 'value',
            name: '数量',
            splitNumber: 5,
            axisLine: {
              //y轴
              show: false,
            },
            axisTick: {
              //y轴刻度线
              show: false,
            },
          }
        ],
        //   {
        //   axisTick: {
        //     show: false
        //   }
        // },
        legend: {
          data: ['注册用户', '累计用户', '订单']
        },
        series: [{
          name: '注册用户',
          smooth: true,
          type: 'line',
          data: dataA,
          animationDuration: 1200,
          animationEasing: 'cubicInOut'
        },
          {
            name:this.$store.state.user.capsuleInfoId != '' ? '累计用户' : '',
            smooth: true,
            type: 'line',
            data:this.$store.state.user.capsuleInfoId != '' ? dataB : '',
            animationDuration: 1200,
            animationEasing: 'cubicInOut'
          },
          {
            name:this.$store.state.user.capsuleInfoId != '' ? '订单' : '',
            smooth: true,
            type: 'line',
            data:this.$store.state.user.capsuleInfoId != '' ? dataC : '',
            animationDuration: 1200,
            animationEasing: 'cubicInOut'
          }]
      })
    }
  }
}
</script>
